This adds coreboot configuration for the Samsung Chromebook Plus (v1),
which is based on the "google/gru" mainboard in upstream coreboot. Also
adds a shared "gru" board directory to share with others having the same
baseboard.
The config is based on the following defconfig:
# CONFIG_USE_BLOBS is not set
CONFIG_VENDOR_GOOGLE=y
CONFIG_CBFS_SIZE=0x00800000
CONFIG_BOARD_GOOGLE_KEVIN=y
CONFIG_CONSOLE_CBMEM_BUFFER_SIZE=0x20000
CONFIG_UART_PCI_ADDR=0x0
CONFIG_I2C_TRANSFER_TIMEOUT_US=500000
CONFIG_PAYLOAD_FIT_SUPPORT=y
Most things work, but one significant problem is that the board can't power
off properly. It also happens with my manual U-Boot-only builds, but not
when I manually build coreboot with a U-Boot payload. Not sure why it is
happening here as well.
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>